ok so i go to take my flywheel cover off my jeep so i can pull the engine without the trans and find that the bolts are to big for 9/16 and 14mm but to small for a 5/8 and 15mm. im thinking 19/32. can anyone confirm this? and if so, why? no one seems to carry this size wrench. sears can get one...in 8 days. what was jeep thinking?